diff options
Diffstat (limited to 'source/blender/blenkernel/intern/navmesh_conversion.c')
| -rw-r--r-- | source/blender/blenkernel/intern/navmesh_conversion.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/source/blender/blenkernel/intern/navmesh_conversion.c b/source/blender/blenkernel/intern/navmesh_conversion.c index 6c3f4d545d3..35bcca52f63 100644 --- a/source/blender/blenkernel/intern/navmesh_conversion.c +++ b/source/blender/blenkernel/intern/navmesh_conversion.c @@ -123,6 +123,11 @@ int buildRawVertIndicesData(DerivedMesh *dm, int *nverts_r, float **verts_r, printf("Converting navmesh: Error! Too many vertices. Max number of vertices %d\n", 0xffff); return 0; } + if (nverts == 0) { + printf("Converting navmesh: Error! There are no vertices!\n"); + return 0; + } + verts = MEM_mallocN(sizeof(float[3]) * nverts, "buildRawVertIndicesData verts"); dm->getVertCos(dm, (float(*)[3])verts); @@ -132,7 +137,13 @@ int buildRawVertIndicesData(DerivedMesh *dm, int *nverts_r, float **verts_r, } /* calculate number of tris */ + dm->recalcTessellation(dm); nfaces = dm->getNumTessFaces(dm); + if (nfaces == 0) { + printf("Converting navmesh: Error! There are %i vertices, but no faces!\n", nverts); + return 0; + } + faces = dm->getTessFaceArray(dm); ntris = nfaces; for (fi = 0; fi < nfaces; fi++) { @@ -387,7 +398,12 @@ int buildNavMeshData(const int nverts, const float *verts, /* build adjacency info for detailed mesh triangles */ - recast_buildMeshAdjacency(dtris, ndtris, nverts, 3); + if (!recast_buildMeshAdjacency(dtris, ndtris, nverts, 3)) { + printf("Converting navmesh: Error! Unable to build mesh adjacency information\n"); + MEM_freeN(trisMapping); + MEM_freeN(dtrisToPolysMap); + return 0; + } /* create detailed mesh description for each navigation polygon */ npolys = dtrisToPolysMap[ndtris - 1]; @@ -415,7 +431,10 @@ int buildNavMeshData(const int nverts, const float *verts, polys = MEM_callocN(sizeof(unsigned short) * npolys * vertsPerPoly * 2, "buildNavMeshData polys"); memset(polys, 0xff, sizeof(unsigned short) * vertsPerPoly * 2 * npolys); - buildPolygonsByDetailedMeshes(vertsPerPoly, npolys, polys, dmeshes, verts, dtris, dtrisToPolysMap); + if (!buildPolygonsByDetailedMeshes(vertsPerPoly, npolys, polys, dmeshes, verts, dtris, dtrisToPolysMap)) { + printf("Converting navmesh: Error! Unable to build polygons from detailed mesh\n"); + goto fail; + } *ndtris_r = ndtris; *npolys_r = npolys; @@ -449,7 +468,7 @@ int buildNavMeshDataByDerivedMesh(DerivedMesh *dm, int *vertsPerPoly, res = buildRawVertIndicesData(dm, nverts, verts, &ntris, &tris, trisToFacesMap, &recastData); if (!res) { - printf("Converting navmesh: Error! Can't get vertices and indices from mesh\n"); + printf("Converting navmesh: Error! Can't get raw vertices and indices from mesh\n"); goto exit; } @@ -457,7 +476,7 @@ int buildNavMeshDataByDerivedMesh(DerivedMesh *dm, int *vertsPerPoly, ndtris, dtris, npolys, dmeshes, polys, vertsPerPoly, dtrisToPolysMap, dtrisToTrisMap); if (!res) { - printf("Converting navmesh: Error! Can't get vertices and indices from mesh\n"); + printf("Converting navmesh: Error! Can't build navmesh data from mesh\n"); goto exit; } |